Quick Start List for Platform

2.2 Quick Start List for Platform

Use the following steps when using the TPA301 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, SLOU011, for additional details). Numbered callouts for selected steps are shown in

-Figure 2–1 and details appear in Chapter 3.

Platform preparations

1)Ensure that all external power sources are set to OFF and that the platform power switch S1 is set to OFF

2)Install a TPA301 module in platform sockets U3 and U4 for stereo operation (or a module in either U3 or U4 for single channel operation), taking care to align the module pins correctly

3)Use switch S2 to select or bypass the signal conditioning EVM (U1)

4)Set control signal Polarity jumper JP8 to Hi

5)Set jumper JP6 to select the Mute control input (causes the TPA301 to mute if a plug is inserted into platform headphone jack J10)

Table 2–2. Platform Jumper and Switch Settings for the TPA301

EVM

JP6

JP7

JP8

S2

S3

TPA301

Mute

X

Hi

Note 2

X

Notes: 1) X = Don’t care

2)Set S2 to ON when signal conditioning board is installed in U1; set S2

-to OFF when no signal conditioning board is installed.

Power supply

6) Select and connect the power supply:

a)Connect an external regulated power supply set to a voltage between 2.5 V and 5.5 V to platform VDD power input connector J6 taking care

to observe marked polarity,

or

b)Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket U6. Install a 9-V battery in B1 or connect a 7 V – 12 V power source to a platform VCC power input J1 or J2 and jumper the appropriate

-power input (see platform user’s guide)

Inputs and outputs

7)Ensure that signal source level adjustments and EVM gain, R4, are set to minimum

8)Connect the audio source to left and right RCA phono jacks J3 and J5 or stereo miniature phone jack J4

9) Connect 8-32-speakers to left and right RCA jacks J7 and J9 or to

-stripped wire connectors J8

Power-up

10)Verify correct voltage and input polarity and set the external power supply

to ON. If VCC and an onboard regulator EVM are used to provide VDD, set platform power switch S1 to ON

Platform LED2 should light indicating the presence of VDD, and the evaluation modules installed on the platform should begin operation.

11) Adjust the signal source level and EVM gain level (R4) as needed

Quick Start

2-3

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Texas Instruments TPA301 manual Quick Start List for Platform, Platform preparations

TPA301 specifications

Texas Instruments TPA301 is a highly efficient, low-power audio amplifier designed for portable audio applications. This device is particularly well-suited for mobile phones, tablets, and other compact audio systems where space is limited but sound quality remains a priority. The TPA301 sits at the intersection of advanced audio technology and user-friendliness, making it a go-to choice for designers seeking a high-performance solution.

One of the main features of the TPA301 is its Class D architecture, which offers superior energy efficiency compared to traditional Class AB amplifiers. This means that less power is wasted as heat, allowing for longer battery life in portable devices. The TPA301 delivers up to 1.5W per channel into an 8-ohm load at low-distortion levels, ensuring that consumers experience clear audio reproduction, even at high volumes.

Furthermore, the TPA301 integrates several advanced technologies, including a built-in digital signal processor (DSP) that enables sophisticated audio processing capabilities. This DSP allows for features like active noise cancellation and equalization, enhancing the listening experience by tailoring the audio output according to the environment. The device also supports various audio inputs, including I2S, PCM, and TDM formats, providing design flexibility for developers.

The TPA301 is designed with a focus on compactness and thermal management, featuring a small package size that makes it ideal for space-constrained applications. Additionally, its low quiescent current contributes to minimal power consumption when the amplifier is in standby mode, making it a perfect fit for portable gadgets where battery longevity is critical.

Another notable characteristic of the TPA301 is its robust protection features, including over-temperature protection, short-circuit protection, and under-voltage lockout. These safety mechanisms ensure reliable operation under various conditions, protecting both the amplifier and connected speakers from damage.

In summary, Texas Instruments TPA301 stands out as an efficient, compact audio amplifier designed specifically for portable applications. Its combination of Class D efficiency, built-in DSP capabilities, wide audio format support, and comprehensive protection features make it an excellent choice for designers aiming for high-quality audio in a small footprint. Whether in smartphones or tablets, the TPA301 ensures consumers enjoy an unparalleled audio experience.